Steady-State and Dynamic Rheological Properties of a Mineral Oil-Based Ferrofluid
Abstract
:1. Introduction
2. Experiment
2.1. Materials
2.2. Preparation Process
3. Results and Discussion
3.1. Static and Dynamic Yield Stresses Analysis
3.2. Viscosity Analysis
3.3. Viscoelastic Behavior of FFs
3.3.1. Amplitude Scanning Analysis
3.3.2. Frequency Scanning Analysis
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Kinematical Viscosity mPa·s (40 °C) | Flash Point °C | Pour Point °C | Density g/cm3 (25 °C) |
---|---|---|---|
32 | 208 | −31 | 0.865 |
Density g/cm3 (25 °C) | Zero Magnetic Field Viscosity mPa·s (40 °C) | Saturation Magnetization kA/m | Particle Volume Fraction % |
---|---|---|---|
1.249 | 341.4 | 24.45 | 7.26 |
Fitting Parameter/M.F. | Static Parameter | Dynamic Parameter | ||||||
---|---|---|---|---|---|---|---|---|
[Pa] | n | R2 | [Pa] | n | R2 | |||
0 mT | 0.01 | 0.51 | 0.98 | 1 | 0.002 | 0.52 | 0.98 | 0.9999 |
24 mT | 0.04 | 1.33 | 0.85 | 0.9999 | 0.03 | 1.14 | 0.89 | 0.9999 |
48 mT | 0.48 | 2.15 | 0.79 | 0.9997 | 0.08 | 1.55 | 0.88 | 0.9999 |
74 mT | 0.86 | 2.68 | 0.76 | 0.9992 | 0.25 | 1.81 | 0.85 | 0.9999 |
100 mT | 1.05 | 2.92 | 0.76 | 0.999 | 0.38 | 2.00 | 0.84 | 0.9999 |
124 mT | 1.17 | 3.16 | 0.75 | 0.9989 | 0.47 | 2.14 | 0.83 | 0.9998 |
150 mT | 1.29 | 3.21 | 0.75 | 0.9986 | 0.53 | 2.24 | 0.82 | 0.9997 |
174 mT | 1.39 | 3.26 | 0.74 | 0.9983 | 0.59 | 2.31 | 0.82 | 0.9997 |
200 mT | 1.46 | 3.32 | 0.74 | 0.9982 | 0.62 | 2.36 | 0.82 | 0.9997 |
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Wang, H.; Meng, Y.; Li, Z.; Dong, J.; Cui, H. Steady-State and Dynamic Rheological Properties of a Mineral Oil-Based Ferrofluid. Magnetochemistry 2022, 8, 100. https://doi.org/10.3390/magnetochemistry8090100
Wang H, Meng Y, Li Z, Dong J, Cui H. Steady-State and Dynamic Rheological Properties of a Mineral Oil-Based Ferrofluid. Magnetochemistry. 2022; 8(9):100. https://doi.org/10.3390/magnetochemistry8090100
Chicago/Turabian StyleWang, Hujun, Yuan Meng, Zhenkun Li, Jiahao Dong, and Hongchao Cui. 2022. "Steady-State and Dynamic Rheological Properties of a Mineral Oil-Based Ferrofluid" Magnetochemistry 8, no. 9: 100. https://doi.org/10.3390/magnetochemistry8090100